Yes but softs can be hard to come by because they don't produce them very often. I know discgolfcenter won't really carry them anymore. You may check out GGGT or Marshall Street.

I'm very happy to hear that Marshall Street will soon carry Vibram. A good place to look now is www.discgolfstation.com (Disc Golf Station). Grant is a great guy and I've gotten very good customer service from him.

I believe so, I've had an Ibex in soft, medium, and firm, the soft and the medium seemed to be the same stability if not the soft being more stable and more glide. The soft and the medium flew dead straight from a flat release and usually died out before they faded (I dont like to throw too high). The firm however if i throw it flat at full power it likes to drift to the right and continue the path before dying, again maybe a 20 ft max height off the ground, but it turn and burn. On a hyzer it flips up nicely, the medium and soft would hold the hyzer angle and ride it till the finish. Aside from the glide I love the Ibex, though it does help me knowing I usually wont go too far past the basket.

My Trak is the only one I have so far in X-Link and Soft. I notice no difference in stability. The only difference I see is distance. I can regularly get the Soft out 20 feet or more than the X-Link. The only time they are together is when I get a bad throw with the Soft...the only time. No idea why, that is just how they work for me.